Jet diverter commonly found on older spas, including Signature. Usually used to control water flow to neck jets. Has a scalloped cap of approx 58-60mm. Once stock is depleted, these will no longer be available.
Fortunately there are replaceable parts though. The following parts are generally interchangeable:
- Dual Tab 1" Hydroair Handle
- Single Tab 1" Hydroair Handle
- Internal Rotor